Synonyms for Superior (same or very similar meaning)
WordNet sense 1 (a combatant who is able to defeat rivals):
master, victor
WordNet sense 2 (one of greater rank or station or quality):
higher-up
WordNet sense 3 (the largest freshwater lake in the world; the deepest of the Great Lakes):
Lake Superior
WordNet sense 4 (a character or symbol set or printed or written above and immediately to one side of another character):
superscript
WordNet sense 5 (excellent; best possible):
topping
WordNet sense 6 (highest in excellence or achievement):
supreme
WordNet sense 7 (having or reflecting superior quality or value):
premium
WordNet sense 8 (of the highest quality):
first-class
WordNet sense 9 (of superior grade):
choice
WordNet sense 10 (first-rate):
capital
WordNet sense 11 (exceptionally good):
boss
WordNet sense 12 (superior in rank or accomplishment):
upper
WordNet sense 13 (of higher rank or status or value):
superordinate
WordNet sense 14 (greatest in importance or degree or significance or achievement):
preeminent
WordNet sense 15 ((used of behavior or attitude) characteristic of those who treat others with condescension):
condescending, patronizing
WordNet sense 16 (having a higher rank):
ranking, higher-ranking
WordNet sense 17 (older; higher in rank; longer in length of tenure or service):
senior
WordNet sense 18 (exercising influence or control):
dominant
WordNet sense 19 (undergoing no change when acted upon):
unaffected
From the ODE community, based on WordNet
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